#!/usr/bin/env bash
#
# Debian/Ubuntu Packaging Scripts
# Copyright (C) 2002-2020 by Thomas Dreibholz
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# Contact: dreibh@iem.uni-due.de

# Bash options:
set -e


# ====== Obtain package and version information =============================
OVERRIDE_PACKAGE_DISTRIBUTION="$1"

CHANGELOG_HEADER="`head -n1 debian/changelog`"

# The package name, e.g. MyApplication
PACKAGE=`echo ${CHANGELOG_HEADER} | sed -e "s/(.*//" -e "s/ //g"`
# The package distribution, e.g. precise, raring, ...
PACKAGE_DISTRIBUTION=`echo ${CHANGELOG_HEADER} | sed -e "s/[^)]*)//" -e "s/;.*//g" -e "s/ //g"`
# The package's version, e.g. 1.2.3-1ubuntu1
PACKAGE_VERSION=`echo ${CHANGELOG_HEADER} | sed -e "s/.*(//" -e "s/).*//" -e "s/ //g" -e "s/ //g" -e "s/^[0-9]://g"`
# The package's output version, e.g. 1.2.3-1ubuntu
OUTPUT_VERSION=`echo ${PACKAGE_VERSION}   | sed -e "s/\(ubuntu\|ppa\)[0-9]*$/\1/"`
# The package's Debian version, e.g. 1.2.3-1
DEBIAN_VERSION=`echo ${OUTPUT_VERSION}    | sed -e "s/\(ubuntu\|ppa\)$//1"`
# The package's upstream version, e.g. 1.2.3
UPSTREAM_VERSION=`echo ${DEBIAN_VERSION}  | sed -e "s/-[0-9]*$//"`
# The package's plain upstream version, e.g. 1.2.3 (without e.g. ~svn<xxxx>)
PLAIN_VERSION=`echo ${UPSTREAM_VERSION}   | sed -e "s/\([0-9\.]*\)[-+~].*$/\1/"`


echo -e "\x1b[34m######################################################################\x1b[0m"
echo -e "\x1b[34mCHANGELOG_HEADER:     ${CHANGELOG_HEADER}\x1b[0m"
echo -e "\x1b[34mPACKAGE:              ${PACKAGE}\x1b[0m"
echo -e "\x1b[34mPACKAGE_DISTRIBUTION: ${PACKAGE_DISTRIBUTION}\x1b[0m"
echo -e "\x1b[34mPACKAGE_VERSION       ${PACKAGE_VERSION}\x1b[0m"
echo -e "\x1b[34mOUTPUT_VERSION:       ${OUTPUT_VERSION}\x1b[0m"
echo -e "\x1b[34mDEBIAN_VERSION:       ${DEBIAN_VERSION}\x1b[0m"
echo -e "\x1b[34mUPSTREAM_VERSION:     ${UPSTREAM_VERSION}\x1b[0m"
echo -e "\x1b[34mPLAIN_VERSION:        ${PLAIN_VERSION}\x1b[0m"
echo -e "\x1b[34m######################################################################\x1b[0m"

if [ ! -e ./packaging.conf ] ; then
   echo >&2 "ERROR: packaging.conf does not exist -> no configuration for the new package!"
   exit 1
fi
. ./packaging.conf

if [ "${OVERRIDE_PACKAGE_DISTRIBUTION}" != "" ] ; then
   PACKAGE_DISTRIBUTION="${OVERRIDE_PACKAGE_DISTRIBUTION}"
   echo ""
   echo -e "\x1b[34m**** Overriding PACKAGE_DISTRIBUTION: PACKAGE_DISTRIBUTION=${PACKAGE_DISTRIBUTION}! ****\x1b[0m"
   echo ""
fi


# ====== Create source package ==============================================
sudo echo ""
./clean-deb
./make-deb ${PACKAGE_DISTRIBUTION}

if [ "${PACKAGE_DISTRIBUTION}" == "unstable" -o \
     "${PACKAGE_DISTRIBUTION}" == "testing"  -o \
     "${PACKAGE_DISTRIBUTION}" == "stable"   -o \
     "${PACKAGE_DISTRIBUTION}" == "default" ] ; then
   if [ "${PACKAGE_DISTRIBUTION}" == "default" ] ; then
      version=${PACKAGE_VERSION}
   else
      version=${DEBIAN_VERSION}
   fi
   changesFilesPattern="${PACKAGE}_${version}_*.changes"
   dscFile=`ls ${PACKAGE}_${version}.dsc | tail -n1`
else
   changesFilesPattern="${PACKAGE}_${PACKAGE_VERSION}~${PACKAGE_DISTRIBUTION}[0-9]~ppa[0-9]_*.changes"
   dscFile=`ls ${PACKAGE}_${PACKAGE_VERSION}~${PACKAGE_DISTRIBUTION}[0-9]~ppa[0-9].dsc | tail -n1`
fi


# ====== Build binary package ===============================================
echo -e ""
echo -e "\x1b[34m`date +%FT%H:%M:%S`: ====== Building binary package ========================================\x1b[0m"
echo -e ""

if [ ! -e "${dscFile}" ] ; then
    echo >&2 "ERROR: Unable to find description file ${dscFile}!"
    exit 1
fi
sudo pbuilder build ${dscFile}


# ====== Run lintian ========================================================
echo -e ""
echo -e "\x1b[34m`date +%FT%H:%M:%S`: ====== Running lintian ================================================\x1b[0m"
echo -e ""

changesFile=`find /var/cache/pbuilder/result/ -name "${changesFilesPattern}"`
if [ ! -e "${changesFile}" ] ; then
    echo >&2 "ERROR: Unable to find changes file ${changesFile}!"
    exit 1
fi

profile="ubuntu"
if [ "${PACKAGE_DISTRIBUTION}" == "unstable" -o \
     "${PACKAGE_DISTRIBUTION}" == "testing"  -o \
     "${PACKAGE_DISTRIBUTION}" == "stable" ] ; then
   profile="debian"
fi
echo "Calling: lintian -iIEv --pedantic --suppress-tags file-references-package-build-path --profile ${profile} ${changesFile}"
lintian -iIEv --pedantic --suppress-tags file-references-package-build-path --profile ${profile} ${changesFile} || true
